Horizontal pulse combustion boiler



FIG. 1 is a front view of a horizontal pulse combustion boiler, according to one preferred embodiment of this invention;

FIG. 2 is a bottom view of the horizontal pulse combustion boiler, as shown in FIG. 1;

FIG. 3 is a top view of the horizontal pulse combustion boiler, as shown in FIG. 1;

FIG. 4 is a side view of the horizontal pulse combustion boiler, as shown in FIG. 1;

FIG. 5 is a side view, opposite the side view shown in FIG. 3, of the horizontal pulse combustion boiler;

FIG. 6 is a front view of a horizontal pulse combustion boiler, according to another preferred embodiment of this invention;

FIG. 7 is a bottom view of the horizontal pulse combustion boiler, as shown in FIG. 6;

FIG. 8 is a top view of the horizontal pulse combustion boiler, as shown in FIG. 6;

FIG. 9 is a side view of the horizontal pulse combustion boiler, as shown in FIG. 6; and,

FIG. 10 is a side view, opposite the side view shown in FIG. 9, of the horizontal pulse combustion boiler. 

The ornamental design for a horizontal pulse combustion boiler, as shown and described. 